title: Acute opiate tolerance in man.
mesh_terms: D000328:Adult; D000368:Aged; D000700:Analgesics; D001285:Atropine / Q000494:pharmacology; D001784:Blood Gas Analysis; D002245:Carbon Dioxide / Q000378:metabolism; D004361:Drug Tolerance; D005260:Female; D005283:Fentanyl / Q000097:blood; D006801:Humans; D008297:Male; D008875:Middle Aged; D009294:Narcotics / Q000494:pharmacology*; D009388:Neostigmine / Q000494:pharmacology; D012119:Respiration / Q000187:drug effects
chemical_list: D000700:Analgesics; D009294:Narcotics; D002245:Carbon Dioxide; D009388:Neostigmine; D001285:Atropine; D005283:Fentanyl